Sash-operating mechanism.



G. GQBMTTON. SASH OPERATING MEGHANISM.

APPLICATION FILED AUG. 30, 1913.

Patente Mar. 31, 19M

2 SHEETS-SHEET 1.

APPLICATION FILED AUG. 30, 1913* Patented Mar. 81, 1914.

2 SHEETS-SHEET 2. f

Sme/nm GEORGE GASS BRITTON F ANNISTON, ALABAMA, ASSIGNOR T0 INTERSTATE ROOFING & FOUNDRZ/COMNY, OF ANN/STON, ALABAMA, A CORPORATION 0F ALABAMA.

SASH-OPERATING MECHANSM.

oeication of Letters Patent. Patented Rial'. 31, 1914.

Application filed August 30, 1913. Serial No. 787,446.

To all Lo/m. t muy confer/a Be it known that l, 'Gironde Grass Burr- 'roN, a citizen of the United States of America, lresiding at Anniston, in the county of Calhoun and State of Alabama, have invented certain new and useful Improvements in Sash-Operating Mechanism, of which the following is a specification.

:My invention relates to certain improvements in sash operating mechanism.

One object of my invention is to utilize a floating lever connected at one end to a swinging link and at the other end to a sash operatingconnection and which is pivotally connectedat an intermediate point to an axially movable line shaft which rocks it to open'and close the sash..

A further object of my invention is to so arrange and design the lever and its several connections that the line shaft acts with strong and effective leverage thereon at all points so that the full force and eii'e'ct of the latter to be disconnected` or dismounted.

A further object of my .'nvention relates to the novel construction of the-brackets for the line shafts and to the fastening means which attach the Heating levers to the line shafts, permitting the lever to be readily a'ttached to and disconnected from 4the shaft as well as ad'usted along the same.

My invention further comprises the details of construction and arrangement of parts, which in their preferred embodiment,

are hereinafter more particularly described and' claimed, reference being had to the accompanying drawings which form a part of this specification,` and in which?- Figure 1 is a plan view of my sash operatmechanism, the parts being shown yin fu l line position, with the sash closed, and in'dotted line position with the sash open.`

Fig. 2 is a front elevation of Fig. 1. Fig. 3

is a detail view of the bracket for the line shaft. F 4 is a side View of the central power station, and Fig. 5 is a' front elevation of Fig. 4. Fig. 6 is a detail erspective view of the means for detachab connecting the racks .to the line shafts.l ig. 7 isa perspective view showing the manner '0f mounting the floating levers on the line shafts. Fig. 8 is a detail `perspective view ofthe lever supporting clamp.

Similar reference numerals refer to similar parts throughout the drawings.

I have illustrated my invention as adapted to open and close sashes but! the prinable for operating doors, sky-lights, 'shutters, etc. i

As illustrated, the sash 1 is pivotally connected to the mullions or frame-2 and adapted to swing outwardly and upwardly to ciples underlying its construction are avail- (nnen. 1'- attach, preferably to the innerl face of the inullions, a series of brackets 3 for supporting the line shafts 4 and 5 which shafts are disposed one abovethe other and extend lengthwise of the serieslof sashes to be operated. The bracket 3 is preferably formed' by a bent metal frame, the `lower member 6 thereof being flanged at its outer end and connected by a bolt or pin 7 to the main section 3 of the bracket. v The bracket is braced to better support the weight o-f the line shafts b. a diagonal brace 8 and it'is provided witlx a series of alining openings in the top and bottom sections which are adapted to receive pins 9. .These pins extend vertically down through the bracket and are held in position therein by Cotter keys 10. 0n each pin I mount two concave rollers 11 which are spaced by a rotatable sleeve or pipe Section 12. The line shafts are received between the adjacent Apairs of rolls and supported thereby free for` longitudinal movement. To each bracket I 'attach a plate 13 which projects on each side of the outer end of the bracket and has its outer ends bent down into a'horizontal plane andA perforated to form the lugs 14. To each of these lugs is pivoted a horizontally swinging link 15. Each link is disposedinwardly outer-.ends of the ol'ierating arms 20 the long an angle ina horizontal plane and vthat the two levers for operating a given sash are re ,versely'disposed and have outer ends connected 15 that arevv connected side ofsuch sash.`

The inner and longerends of the levers are, pivotally connected'at' their inner ends to the sash operating links 20 by means of pins 2l which are perforated'to receive .cot-

to the swinging links to the brackets on each ter keys. At their elbows the fioating levers' are `pivotally connected by pins 22 to clamps which lare adjustablynmounted on the line shafts. These clamps (see Figs. 7 and 8) comprise a main body portion 23which is provided .with a tapering groove into which a wedge section 24 of the clamp is adapted to be. inserted endwise and locked. The ywedge has, one edge 25 which works in a groove"v overhang by. the outer inturned edge 26 of thek section 23, while its opposite side is provided with a tongue 27 which works in a correspondingly shaped undercut groove formed infthe side wall of the slot in section 23. vThe abutting faces of these y sections have semi-circular grooves which register and jointly form a circular opening 28 ,to receive ka line shaft. The tapered character of the Wedge permits it to beiforced inwardly into 'the tapered slot until the clamp tightly grips the shaft. An opening 29 is drilled down through the .two sections of the clamp and receives a pin 22 which thereby yserves .to both hold the clamp sections locked on the shaft and to pivotally connec't'affloating lever to the clamp. A set screw 30 is screwed in through the back of `clamp section 23 and holds the clamp in set.,position on the line shaft while ya cotterfkey 3l detachablj.1 holds the pin 22 in voperating position. By reference to Fig. v2

it will-,be noted that the clamps are 're` so as to' l ring their respective floating levers intoposition between the shafts.-

The

are pivotally connected tosashes lat 32. A brace '46 is'attached by pin 22 to each clamp on the'opposite sidel from `the floating lever, and-its free end is bent down and riveted to end of the lever to reinforce it.

The central power station, according'to j my inventioinis adapted to be mounted at angled sections '33 which their shorter andi A guard 52 for the metal bracket comprising upper and lower are suitably attached to a nullion and which, at their outer jeudis, 'are fastened to a vertical section 84. lijirallel with section 34 is a bar 35 which has angled endsI bbllged to section 34 and to sections 33. ljliise members 34 and 35 are provided with suitable bosses in which stub shafts 3G and 37 are mounted. The shaft .37 has fixed on its outer end. a sheave wheel 3S and is held in position 'in the bracket by a washer 39 and a detachable Cotter key 40. A train of gears is mounted in the bracket and comprise a. small pinion 4l on the shaft 3T whiclrmeshes with a large pinion 42 on the 'shaft 3G and this pinion, in turn.I serves to drive a small pinion 43 disposed between and in mesh with two racks 44 and These racks' are 'similar in construction and. as seen in Fig. G,

are formed as integral parts of elongatedl boxings which open along 'one side to receive the line shaft and at "cach end are provided with enlarged housings 47 having ,openings facing 'the saine side as the longitudinal slot in the boxing and also having openings on the back side. A detachable clamp is adapted to be received in each of these housings 47 and, by engaging the end walls of the housing, to hold the racks against longitudinal movement on the shafts while permitting the boxing to be slipped offvthe shaft over the clamps. The clamp comprises ltwo similar hinged sections 48 which are fastened together at theirfreesv ends by a bolt it will be seen that the racks are held against 49. By reference to Fig. 4v

lateral disengagement from the shafts by.

the narrow clearance provided forthem .between the wheel 42 and the frame section 35. The racks the pinion by means of rollers 50 which are journaledin the frame section 35. The

bracket sections-B3, like the brackets 3, are provided with a series of. openings 5]. which receive the 'bolts' that hold the frame as-4 sembled.

A plate 13 carrying lugs 14, to which the are held in engagement with Y two adjacent links llkare. attached, is bolted to section 35 of the power station bracket.

sheave pulley is attached to the outer section 34 .of the bracket anda chain 53 is passed over. the pulley and is used to tnrn'it, and,

by the power augmente ing train of gears shown, to rotate the driv ing gear 43 and move the racks and line lshafts 4 and 5in reverse directions. To remove the power station it is to disconnectV the section 35 part of the bracket frame,

only necessary from the other after loosening monies si the Cotter keys which hold the shafts 36 and 37 journaled therein, and then to draw the main bracket frame and pulley outwardly.- The vracks are then free to be slipped olf the line .shafts and the clamps 4S thereon, after which the clamps are detached. The power station can 'be readily applied at any other point alongthe line sliafting by transferring the bracket to the desired point and, after applying the clamps loosely in the boiriiigs i7 and mounting the racks in the desired position on the shafts, assem- :afg the bracket parts about the shafts and raars. in 'the .manner described after which 'Y clamps made fast. if desired the system line shafting may be'adtoward or from the Asashes by means @tra holes provided in the brackets 3 e the shaft supporting members. -liower is applied by a chain 53 to revolve tnesheave wheel, which, through the train ofgearsdes'cribed, revolves the small pinion 3 that meshes with the racks d4 and 45 and cause the two line shafts l and 5 to be moved longitudinally in reverse directions. The train of gears are designed to ap ly ample power to .move the load on the s afts. As

` the line shafts are moved, for instance, to

shift the doating levers'18 and 19 from full line to dotted li e position, Fig. 1, it will be noted that the angular travel of the inner end of the levers is small and that there is` but small variation in the angle between the p lever and link in both positions, so that -thepower of the line shaft is applied always- Aapproximately at right angles to the levers and l maintain thereby a highly e'ective application of the line shaft power to the work throughout all operatingv positions for the mechanism. As shaft 4 is moved to the right the fulcrum point of the lever, namely, its pivotal connection to the free end of link lo, travels inwardly following the arcuate effect the opening of the sash with a push which approaches a straight push as the' sash opens and the floating lever assumes the dotted line position shown. lnasmuch as the lower shaft 5 has been moving in the opposite direction to shaft 4f, a similar but reverse movement has been imparted thereby to theiioating lever 19 which it controls and the latter has been swung to its dotted line position and has acted on the other side of the sash to move it outwardly.`

The connectionsfor the .operating elemints `are adiusted to apply 'the push and pull strain evenly and to the desired extent to both sides of the sash.

ly the construction of my floating levers and the peculiar manner of mounting them l ani enabled to avoid the loss of power which is common in other constructions where the angle between the shaft and the sash operating lever practically disappears in certain operating positions.

lt will beobvious thatcertain advantages of my construction are `obtainable where a single line shaft is used, this arrangement being used where the sashcs a re small.` ln this case the pivot 32 would be located at the center of the sash, only one lever to each sash being used when operating with-a single line shaft. i

'lWithout limiting' myself to the details.

ber to be operated and its support, of an operating shaft which is longitudinally movable, a lever pivoted medially to said shaft and disposed. crosswise of the shaft, and two reversely disposed arms pivoted to the ends of the lever, one arm being pivoted to said support. on one side of said member and the otherarm to the other side of thev member to be operated. l

3. The combination with a series of pivoted sashes and their supports, of a longitudinally movable operating shaft, supports therefor, floating levers pivotally connected medially to said shaft, horizontally swinging links having a fixed support at one end and having their free ends pivotally connected each to an outer end of a floating lever, and operating rods p'ivotally connected each to the inner end of a floating lever :and to a sash to be operated thereby, substantially as described.

4. ln a'sash operating mechanism, two

reversely movable operating shafts, fixed.

supports to conne 'said shaftskto longitudinal movement, iioating levers pivoted medially to said shafts, swinging links having fixed supports at one end and ,which have their free ends pivotally connected to the outer endsof said levers, and operating rods whichare pivotally connected to the Yinner ends of said levers and to'th-e sash to `be operated, substantially asfrille-z scribed.

c l, 'connected to the outer ends of fica levers, and operating rods which are pivot-- allypeonnected to the inner ends of the floatingflevers and to the sashes to be operated, substantially as described. 1

(l.l In combination, tivo line shafts, means to move said shafts longitudinally inreversc directions, a floating lever connected ilic'ditilly to shaft in front of the sash to, be ,prated, reversely disposed links adapted te leoseljyA tiennent the outer ends of said leverstonxed supports en each side of the sash to be operated thereby, and operatiiigf` reds adapted to' pivotally connect 'the inner ends of said levers te the sash 'tube l opentd, substantially as described..

7.111 emnhinationwith' a` piveted sash and a structure which it is mounted, of

'an' operating mechanism for the sash comprising two reversely' line shafts, supports which confine said shafts to longil tudinal movement, a floating lever pivotally connected medially to each shaft,

operating rod ywhich pivotally connects the inner end of each leverv to the adjacent'y side of the sash, and a link Which pivotally connects the outer end of each lever t0 the sash support-infr structure at the opposite side of the sash from that to which the operating rod', common to the same levery is connected. 8. A sash operating mechanism comprising'operating rods pivoted to the sashes, longitudinally movable operating shafts, means to operate said shafts in reverse di rections, levers pivoted medially tol said shafts and inclined slightly from a right angle to said shaft in oplposite directions, an operating'rod pivot-ally connecting the inner 'end of each lever to the adjacent side of the sash, and a link pivptally connecting the outer end of each lever to a fixed support on the opposite side of the sash from that to Which each lever is connected;

9.*The combination with a. plurality of' pivoted-sashes and a' structure in which said sashes are? mounted, of two line shafts, supports Whichconne said shafts'to longitudinal movements, an operatingv lmechanism adapted to impart reverse movements to said shafts, and an operating mechanism for each sash controlled by said shafts and comprising a pair of angled levers4 pvotally connected at their 'elbows to said shafts and rlp riesiges having inner ends disposed at reverse angles to the shafts, links pivotally connecting the inner end of each lever to a sash, and links ,pivotally' connecting the outerl ends ofl each lever to the structure 0n the oppositeside of the sash from that to which the lever is opera-tively connected7 snbstantiallyas described.

10. In a sash o )erating mechanism, a longitudinally mova lc line shaft, a'clamp dejtuchably and adjustablyvmounted'on said haft comprising top and bottom members fig a semicircular shaft opening, a

vertical pin adapted to pass down through both clampsections and interlock them, a lloating lever which ispivoted to said pin, a set screw to hold the clamp in adju?y t. position on the shaft, a swinging fulcruin for one end of the lever, and a swinging l operating connection from the other end of the lever to the sash. Y l 11,. In'a sash operating mechamsm comprising two line shafts, supports confining said shafts to longitudinal movements, and

a centralvpower station for ope'hting said li'malre a Wedge fit, each section com shafts and comprising a trainof gears, and

reversely disposed'racks detachable sideWise from and adjustable ylengthwise on said shafts, which racks are driven by said train of gears, substantially asdescribed.

12. In a sash opera-ting mechanism, a longitudinally movable line shaft, a support to confine said shaft to longitudinal movement, an operating mechanism foi` the shaftcom'- prising a pinion and rack, said rack being lbodily detachable sidewise .from the shaft,

and detachable means for holding the rack Iagainst movement on the shaft, substantially 'as described.

A13, In a sash operating mechanism, a lon-` gitudinally movable line shaft, supports to connesaid shaft to longitudinal movement, an operating mechanism for the shaft comprising a pinion and rack, said rack havin a side slot adapted to receive said shaftA an to permit the rack being detachable sidewise from the shaft, and means for detachably holding the rack on the shaft, substantially as described. u

14C.A In a sash operating mechanism, a longitudinally movable line shaft, supports to confine said shaft to longitudinal movements, an operating mechanismfor the shaft comprisin a central power station having a revolu le pinion, Aa rack adapted for attachment to and disconnection from an intermediate point, of said shaft Without interference' With the shaft supports on either side thereof, and means to detachably hold said rack in predetermined operating position on said shaft, substantially as described.

10 adapted. to

meme@ shaft extending lengthwise of said eiernente, a series of bearings `for the shaft, a Series of actuating mechanisms for transmitting shaft motion to said elements, and :i @entrai power station for operating the shaft ceinprising e bracket which is removable to different points along the shaft Without disturbing the latter, power transmission meeggrarrled byrveaid bracket, and ineens lie-'engaged by said transmission means to move' the shaft, which means is also detachable 4from the shaft Without dis'- turbing it.

in testimony Whereef I e'x my signature i in presence of two Witnesses.

GERG-E GASS BRTTQN.

Witnesses:

NOMIEWELSH, 1gNM.. C. PRICEETT. 

